suite passes now with mcode->mach lowering

source/quickjs-internal.h

@@ -595,6 +595,8 @@ typedef enum MachOpcode {
 
   /* Misc */
   MACH_IN,            /* R(A) = (R(B) in R(C)) — has property (ABC) */
+  MACH_IS_FUNC,       /* R(A) = is_function(R(B)) */
+  MACH_IS_PROXY,      /* R(A) = is_function(R(B)) && R(B).length == 2 */
 
   MACH_OP_COUNT
 } MachOpcode;
@@ -724,6 +726,8 @@ static const char *mach_opcode_names[MACH_OP_COUNT] = {
   [MACH_DISRUPT] = "disrupt",
   [MACH_SET_VAR] = "set_var",
   [MACH_IN] = "in",
+  [MACH_IS_FUNC] = "is_func",
+  [MACH_IS_PROXY] = "is_proxy",
 };
 
 /* Compiled register-based code (off-heap, never GC'd).